Engineering, 12.10.2020 02:01 stefkellum58
Steam at 260°C flows in a stainless steel pipe (k = 15 W/m⋅K) whose inner and outer diameters are 5 cm and 5.5 cm, respectively. The pipe is covered with 3-cm-thick glass wool insulation (k = 0.038 W/m⋅K). Heat is lost to the surroundings at 5°C by natural convection and radiation, with a combined natural convection and radiation heat transfer coefficient of 22 W/m2⋅K. Taking the heat transfer coefficient inside the pipe to be 80 W/m2⋅K, determine the rate of heat loss from the steam per unit length of the pipe. Also, determine the temperature drops across the pipe shell and the insulation.
Answers: 2
Engineering, 03.07.2019 14:10
The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite
Answers: 3
Engineering, 04.07.2019 18:10
Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?
Answers: 3
Engineering, 04.07.2019 18:10
Machinery that is a key part of the process and without which the plant or process cannot function is classifed as: (clo4) a)-critical machinery b)-essential machinery c)-general purpose machinery d)-none of the specified options.
Answers: 1
Engineering, 04.07.2019 19:10
An electric kettle is made out of stainless steel, weighs two pounds (when empty) and is equipped with a heating element that consumes 2 kw of electricity. assuming that the water and the kettle are at the same uniform temperature at any moment of time, calculate the shortest possible time to bring 2 quarts of water from room temperature to the onset of boiling
Answers: 2
Steam at 260°C flows in a stainless steel pipe (k = 15 W/m⋅K) whose inner and outer diameters are 5...
Mathematics, 19.03.2021 15:30
Social Studies, 19.03.2021 15:30
English, 19.03.2021 15:30
Mathematics, 19.03.2021 15:30
Physics, 19.03.2021 15:30
Chemistry, 19.03.2021 15:30
Mathematics, 19.03.2021 15:30
Mathematics, 19.03.2021 15:40
Biology, 19.03.2021 15:40
Mathematics, 19.03.2021 15:40
Biology, 19.03.2021 15:40